Fluorapatite
Panasqueira, Castelo Branco, Portugal
While fairly common in nature as small crystals, the mineral fluorapatite is also found in the human body, composing much of our tooth enamel and bone.

New Cornelia Mine, Ajo, Pima County, Arizona
Copper minerals found at the site of today’s open pit copper mine at New Cornelia were used originally as a source of pigment by the Tohono O’Odham tribe. Two minerals – ajoite and papagoite – were first discovered at the mine.